| 1 | PIF | Aeroservicios California Pacifico, S. De R.L. De C.V. | Callsign: Aerocalpa, | MEX | AVCODES |
| 2 | PIF | Aeroservicios California Pacifico | | | ICAO1 |
| 3 | PIFD | POLAR INTERNATIONAL FORWARDING CO L | | | SCAC4 |
| 4 | PIFE | PINNACLE FREIGHT LINES INC (LTL DIV | | | SCAC4 |
| 5 | PIFF | POTOMAC INTERNATIONAL FREIGHT FORWA | | | SCAC3 |
| 6 | PIFH | PIFHER TRUCKING | | | SCAC3 |
| 7 | PIFK | PIFF SHIPPING LTD | | | SCAC4 |
| 8 | PIFL | PINNACLE INTERNATIONAL FREIGHT INC. | | | SCAC3 |
| 9 | PIFL | PINNACLE INTERNATIONAL FREIGHT LTD | | | SCAC4 |
| 10 | PIFM | PISTER FARMS INC | | | SCAC3 |
| 11 | PIFO | PITCHFORD, REX TRUCKING INC | | | SCAC3 |
| 12 | PIFP | PITTS, FRANK P | | | SCAC3 |
| 13 | PIFQ | PIEDMONT FUEL & DISTRIBUTING CO INC | | | SCAC3 |
| 14 | PIFR | PACIFIC INDUSTRIAL FURNACE CO | | | SCAC3 |
| 15 | PIFS | PIONEER FREIGHT SYSTEMS INC | | | SCAC4 |
| 16 | PIFT | PIONEER FREIGHT LINES | | | SCAC3 |
| 17 | PIFU | PEDDIE INVESTMENT TRUST | | ZA | BIC |
| 18 | PIFU | PEDDIE INVESTMENT TRUST | | | SCAC4 |
| 19 | PIFV | PHOENIX INTL FREIGHT SERVICES PVT L | | | SCAC4 |
| 20 | PIFW | PHOENIX INTERNATIONAL FREIGHT SERVI | | | SCAC3 |
| 21 | PIFW | PHOENIX INTERNATIONAL | | | SCAC4 |
| 22 | PIFX | Pifer Tank Car Co. | added 10/1987; 1/1994-7/2005; eliminated 4/2006 | | NAKINA |
| 23 | PIFX | Pifer Tank Car Co. | added 10/87; 1/94-7/2000 | | NRHS |
| 24 | PIFX | PIFER TANK CAR COMPANY | | | PWRC |
| 25 | PIFX | Pifer Tank Car | | | RSRV |
| 26 | PIFX | PIFER TANK CAR COMPANY | | | SCAC4 |
